EP0495281A3 - Method and apparatus for recording on optical discs - Google Patents

Method and apparatus for recording on optical discs Download PDF

Info

Publication number
EP0495281A3
EP0495281A3 EP19910302101 EP91302101A EP0495281A3 EP 0495281 A3 EP0495281 A3 EP 0495281A3 EP 19910302101 EP19910302101 EP 19910302101 EP 91302101 A EP91302101 A EP 91302101A EP 0495281 A3 EP0495281 A3 EP 0495281A3
Authority
EP
European Patent Office
Prior art keywords
optical disc
lamina
recording
optically active
nonwriting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19910302101
Other languages
German (de)
French (fr)
Other versions
EP0495281B1 (en
EP0495281A2 (en
Inventor
Jim Rodney Norton
David George Loeppky
Robert Bruce Dobbin
Robert Craig Beauchamp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Del Mar Avionics Inc
Original Assignee
Del Mar Avionics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Del Mar Avionics Inc filed Critical Del Mar Avionics Inc
Publication of EP0495281A2 publication Critical patent/EP0495281A2/en
Publication of EP0495281A3 publication Critical patent/EP0495281A3/en
Application granted granted Critical
Publication of EP0495281B1 publication Critical patent/EP0495281B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/24097—Structures for detection, control, recording operation or replay operation; Special shapes or structures for centering or eccentricity prevention; Arrangements for testing, inspecting or evaluating; Containers, cartridges or cassettes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

Method and apparatus for a portable clean environment used for recording optical disc masters by enclosing a light sensitive optical disc in a container that prevents ambient contamination from destroying the pristine environment necessary to create optical disc masters. A transparent optical disc, having an optically active lamina on at least one surface of the transparent optical disc, is enclosed in a dish shaped container that is generally free of particulate larger than 0.2 microns, the enclosure assembly effectively preserving a class 10 cleanroom environment. The dish shaped enclosure isolates the surface of the optical disc used to record data from contamination due to ambient conditions while exposing the nonwriting surface of the optical disc to enable laser writing. A foil seal protects the exposed nonwriting surface of the optical disc from ambient contamination during storage and until recording is desired. Once recording is desired, the foil seal is removed, the entire assembly is placed on the spindle of a turntable, and the transparent optical disc allows laser light to pass through the optical disc and focus on the optically active lamina to form pits within the optically active lamina by either ablating the lamina or by consuming the lamina. The optical disc is then removed from the cover in a cleanroom where electroforming is done on the optical disc to create a disc master.
EP91302101A 1991-01-16 1991-03-13 Method and apparatus for recording on optical discs Expired - Lifetime EP0495281B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/641,696 US5293370A (en) 1991-01-16 1991-01-16 Method and apparatus for creating optical disc masters
US641696 1991-01-16

Publications (3)

Publication Number Publication Date
EP0495281A2 EP0495281A2 (en) 1992-07-22
EP0495281A3 true EP0495281A3 (en) 1992-08-19
EP0495281B1 EP0495281B1 (en) 1996-08-14

Family

ID=24573488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91302101A Expired - Lifetime EP0495281B1 (en) 1991-01-16 1991-03-13 Method and apparatus for recording on optical discs

Country Status (4)

Country Link
US (1) US5293370A (en)
EP (1) EP0495281B1 (en)
JP (1) JP2837768B2 (en)
DE (1) DE69121383T2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401831B (en) * 1994-03-15 1996-12-27 Koch Digitaldisc Ges M B H & C DEVICE FOR TESTING MATRICES
SE9703479D0 (en) * 1997-06-02 1997-09-25 Toolex Alpha Ab Stamper
SE9703480D0 (en) * 1997-07-16 1997-09-25 Toolex Alpha Ab Stamper and method of manufacturing the same
AU9097298A (en) * 1997-09-12 1999-04-05 Odme International B.V. Sealed enclosure for shipping, storing and recording an optical disc master
US20070003979A1 (en) * 1998-10-30 2007-01-04 Worthington Mark O Trackable optical discs with concurrently readable analyte material
US6978469B2 (en) * 2002-11-25 2005-12-20 Brown Johnny L Disc protector
MXPA06012049A (en) * 2004-04-20 2007-01-25 Koninkl Philips Electronics Nv Split disc optical storage medium and device.
US7409698B2 (en) * 2005-10-15 2008-08-05 Mark Tjensvold Optical disc case usable in player with disc encased therein
US20080035503A1 (en) * 2006-06-27 2008-02-14 Rentzepis Peter M Optical disc carrying case with activation window
DE102009018434B4 (en) * 2009-04-22 2023-11-30 Ev Group Gmbh Receiving device for holding semiconductor substrates

Citations (2)

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Publication number Priority date Publication date Assignee Title
EP0010017A1 (en) * 1978-09-29 1980-04-16 Thomson-Csf Protected optical disk
EP0086065A1 (en) * 1982-01-29 1983-08-17 Kabushiki Kaisha Toshiba Radiation-sensitive record disc

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US3565978A (en) * 1967-09-11 1971-02-23 Xerox Corp Replication of surface deformation images
US4074282A (en) * 1976-05-13 1978-02-14 North American Philips Corporation Radiation-sensitive record with protected sensitive surface
JPS6030018B2 (en) * 1977-11-14 1985-07-13 三菱電機株式会社 exposure equipment
US4264911A (en) * 1979-08-20 1981-04-28 Mca Discovision, Inc. Optical recording disc and related method of manufacture
US4304806A (en) * 1980-02-01 1981-12-08 Minnesota Mining And Manufacturing Company Information carrying discs
JPS56117341A (en) * 1980-02-18 1981-09-14 Toshiba Corp Optical disk and its manufacture
JPS56137555A (en) * 1980-03-27 1981-10-27 Sony Corp Optical disc cassette and disc driving method
JPS56145535A (en) * 1980-04-15 1981-11-12 Matsushita Electric Ind Co Ltd Disc for optical recording
US4331966A (en) * 1980-10-06 1982-05-25 Storage Technology Corporation Information storage device and method of forming same
US4327830A (en) * 1981-01-30 1982-05-04 Rca Corporation Record stamper protector
US4365258A (en) * 1981-05-18 1982-12-21 Eastman Kodak Company Optical disc unit, fabrication method and cooperating write and/or read apparatus
DE3377173D1 (en) * 1982-09-29 1988-07-28 Toshiba Kk Radiation-sensitive carrier body utilized as stamper structure
US4470054A (en) * 1982-10-25 1984-09-04 Eastman Kodak Company Optical disc write/read apparatus with disc mounting means
US4536869A (en) * 1983-01-17 1985-08-20 Eastman Kodak Company Optical disk assembly
NL8300478A (en) * 1983-02-09 1984-09-03 Philips Nv OPTICALLY READABLE MEMORY DRIVE.
US4556968A (en) * 1983-03-31 1985-12-03 Storage Technology Partners Ii Unconstrained removable protective cover for optical disk
US4561086A (en) * 1983-05-12 1985-12-24 Eastman Kodak Company Optical write/read unit with selective-transparency cover
US4482903A (en) * 1983-06-20 1984-11-13 Eastman Kodak Company Disk unit with retaining ring
US4539573A (en) * 1983-06-24 1985-09-03 Eastman Kodak Company Protective construction for optical disk units
JPS60155424A (en) * 1984-01-26 1985-08-15 Daicel Chem Ind Ltd Large diameter optical disc substrate made of polycarbonate and its preparation
US4790893A (en) * 1984-07-19 1988-12-13 Hallmark Cards, Inc. Replication of information carriers
JPS6163930A (en) * 1984-09-04 1986-04-02 Matsushita Electric Ind Co Ltd Disk recording carrier
JPS6180633A (en) * 1984-09-28 1986-04-24 Tdk Corp Optical recording disc
JPS61246943A (en) * 1985-04-24 1986-11-04 Nec Corp Optical information recording medium
JPS6231047A (en) * 1985-08-02 1987-02-10 Daicel Chem Ind Ltd Air sandwich type optical disk with vent hole
JPS6391843A (en) * 1986-10-06 1988-04-22 Fuji Photo Film Co Ltd Optical disk substrate
JPS63188838A (en) * 1987-01-31 1988-08-04 Toshiba Corp Information recording medium
JPS63292474A (en) * 1987-05-26 1988-11-29 Seiko Epson Corp Method for housing stamper for optical disk
JPH01116978A (en) * 1987-10-28 1989-05-09 Nec Corp Optical storage medium
JPH01258243A (en) * 1988-04-08 1989-10-16 Fujitsu Ltd Interchange type rewritable optical disk
JPH02165441A (en) * 1988-12-17 1990-06-26 Sony Corp Optical information recording medium having peelable protective film
JP2805856B2 (en) * 1989-06-30 1998-09-30 ミノルタ株式会社 Image data readout circuit
US5099469A (en) * 1990-02-20 1992-03-24 Del Mar Avionics Process for manufacturing an optical disc master

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010017A1 (en) * 1978-09-29 1980-04-16 Thomson-Csf Protected optical disk
EP0086065A1 (en) * 1982-01-29 1983-08-17 Kabushiki Kaisha Toshiba Radiation-sensitive record disc

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
FUJITSU SCIENTIFIC AND TECHNICAL JOURNAL vol. 23, no. 1, 1987, KAWASAKI pages 44 - 54; K-I. ITOH, M. HAMADA AND S. OHTAKI: 'replication master for optical disk substrates' *
FUNKSCHAU. no. 21, 1982, MUNCHEN DE pages 65 - 68; H. AHRENS: 'Herstellung einer LV-Bildplatte' *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 120 (P-846)24 March 1989 & JP-A-63 292 474 ( SEIKO ) 29 November 1988 *
PATENT ABSTRACTS OF JAPAN vol. 3, no. 92 (E-128)4 August 1979 & JP-A-54 069 404 ( MITSUBISHI ) 6 April 1979 *
POLYMERS IN INFORMATION STORAGE TECHNOLOGY 1988, pages 155 - 172; P.E.J. LEGIERSE AND J.H.T. PASMAN: 'Materials for mastering and replication processes in optical video, audio and data disc production' *

Also Published As

Publication number Publication date
JP2837768B2 (en) 1998-12-16
EP0495281B1 (en) 1996-08-14
DE69121383D1 (en) 1996-09-19
US5293370A (en) 1994-03-08
EP0495281A2 (en) 1992-07-22
DE69121383T2 (en) 1997-03-20
JPH04276328A (en) 1992-10-01

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